Chapter 8

Chapter 8

Click on the links below to download solutions for the chapter review.
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Skill	Example in the book	Exercises	Additional Tutorials
1. Define Cos, Sin, Tan, Cot, Sec, Csc of acute angles in a right triangle	p. 510, summary + Ex. 1		http://www.youtube.com/watch?v=_S35Ht4imhs
2. Find sides of a right triangle using Pythagorean theorem and trigonometric functions	p. 513, Ex. 4	WS Trig Ratios(p. 74)+Rt Angle Trig (p. 63)Pg. 518 # 9-18, 29-42	http://www.youtube.com/watch?v=XFh_JC7OSrg http://www.youtube.com/watch?v=hN7FG15lIh4 more practice
3. Find angles of a right triangle using inverse trigonometric functions	p. 513, Ex. 5
4. Finding values of cos, sin, tan, cot using complementary functions and properties of complementary angles	p. 512, Ex. 3	pg. 518 #19-28
5. Proof of identity cos2(x)+sin2(x)=1 through Pythagorean theorem. Using the identity to calculate angles and values of trigonometric functions
6. Calculate exact values of trig. functions in special triangles: 45-45-90 and 30-60-90			http://www.youtube.com/watch?v=nVTtSE5nv7c http://www.youtube.com/watch?v=yI62jLF1pf8
7. solving word problems that require use of angle of elevation and deprecation.	p. 514 Ex. 6-12	p. 518, #43-52, 55-58, 63, 64, 69, 71, 78	http://people.wku.edu/david.neal/117/Unit3/RtTriangle.pdf http://www.youtube.com/watch?v=IovoJ6JEykA
8. Laws of Sin and Cos	p. 524 Ex. 1-2, p. 534 Ex. 1,2	p. 530, # 9-24 p. 537, # 9-31	http://www.youtube.com/watch?v=QkpDJaze31k http://www.youtube.com/watch?v=VTNHGeyR0ow http://www.youtube.com/watch?v=tS7cQX6C_zY more practice
9. Solving word problems involving laws of sin and cos	p.527 Ex 6,7p. 536 Ex. 3	p. 530 # 37-44 p. 538, # 43-53	http://www.youtube.com/watch?v=kzA0I2jwoiM http://www.youtube.com/watch?v=qE3-4ZfMCZQ
Extra: Why Radians?			http://mathwithbaddrawings.com/2013/05/02/degrees-vs-radians/
Humor: If Trig Functions Could Talk...			IF Trig Function Could Talk...